Species diversity changes of standing vegetation and soil seed bank in exclosure and grazing area (Case study: Mahoor Mamasani Rangelands, Fars Province)
Author(s):
Message:
Abstract:
Biodiversity assessment is important for better understanding of ecosystem structure and function, gene bank conservation and evaluating and controlling environmental changes. Knowledge of the effect of grazing on standing vegetation structure and soil seed bank is essential for better management. This research was conducted to compare the diversity and richness indices under exclosure and grazing in Mahoor Mamasani rangelands. Sampling of standing vegetation and soil seed bank was carried out in these two areas. Canopy cover percentage was measured in plots of 1m2 and soil seed bank samples were taken from two depths (0-5 and 5-10). Standing vegetation and soil seed bank data were analyzed to evaluate the response of individual species diversity and richness indices and soil seed bank to grazing. Also, multivariate analyses were applied to assess the response of plant communities in both standing vegetation and soil seed bank. Results showed that grazing and exclosure affected species diversity and richness indices, significantly. Exclosure area showed the highest species richness and diversity while the lowest was recorded for grazing area. Also, aboveground vegetation significantly had greater species richness and diversity. Due to the damage of some standing vegetation and soil seed bank indices of biodiversity under overgrazing, it is recommended to make some changes in current rangeland management and utilization in order to restore vegetation.
Language:
Persian
Published:
Iranian Journal of Range and Desert Research, Volume:20 Issue: 4, 2014
Pages:
745 to 755
magiran.com/p1276364  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!